Gearing.



F. 0. & E. J. BAST.

GEARING.

APPLICATION FILED MAY 17, 1913.

Y Patented Apr. 7,

UNFFEE STATES PATENT OFFIQE.

FRIEDRICH 0. EAST AND EMIL J. EAST, OF GARY, MINNESOTA.

GEARING.

oaasas.

Specification of Letters Patent.

Patented Apr. *7, 1914.

Application filed May 17, 1913. Serial No. 768,202.

To all whom it may concern Be it known that we, FRIEDRICH C. BAST and EMIL J. BAST, citizens of the United States, residing at Gary, in the county of Norman and State of Minnesota, have invented certain new and useful Improvements in Gearing; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Qur invention has for its object to provide an improved dust proof gear casing intended for general use but especially designed to be used in connection with steam and gasolene traction engines, for covering the driving gears and meshing pinions of their traction wheels.

To the above ends, generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a view partly in longitudinal vertical section and partly in plan, showing our invention applied to a traction engine; Fig. 2 is a view principally in side elevation of the parts shown in Fig. 1, some parts being sectioned on the line 413 x of Fig. 1 and some parts being broken away; Fig. 3 is a detail view in longitudinal vertical section, taken on the line m m of Fig. 1; and Fig. 4 is a detail view partly in side elevation and partly in horizontal vertical section, taken on the line m m of Fig. 1.

For the purpose of showing our invention in working position, a portion of a traction engine has been illustrated in the drawings. Of the parts of the said engine, the numeral 1 indicates one of its traction wheels loosely journaled on a rear axle 2 mounted in a bearing 3 on the frame 4. Mounted on the inner end of the hub of the traction wheel 1 and rigidly secured to rotate therewith is a large driving gear 5, with which meshes a cooperating pinion 6, keyed to a counter shaft 7, journaled in a bearing 8 on the frame 4. The parts thus far described may be of the standard or any desired make.

Referring now to our invention, the nu meral 9 indicates a pair of reversely extendjoint flanges 12, to the inner faces of which are secured, by rivets, annular wearing strips 13 within which the joint flanges 9 rotate in close engagement. Brackets 14 rigidly connect the casing 11 to the frame 1. In the drawings, only two brackets 14 are shown, but, of course, any number may be provided to securely hold the casing in its proper position. At its upper portion, the casing 11 is transversely divided and the ends thereof are overlapped at 15, to afford a dust proof joint. As best shown in Figs. 2 and 3, the overlapped ends of the joint flanges 12 and wearing strips 13 are reversely beveled and. overlapped, to form a loose splice.

For circumferentially expanding and contracting the joint flanges 12 on the joint flanges 9, a pair of screw rods 16 is provided. These screw rods have threaded engagement, at their ends, with nut lugs 17 secured on the joint flanges 12 and are provided, at their intermediate portions, with a squared section 18, to which an operating wrench may be applied, for rotating the same.

To clamp the overlapped ends 15 of the casing together, to afford a dust proof joint, a nut equipped bolt 19 is passed through coincident elongated slots 20, formed in the transverse portions of said overlapped ends. Obviously, these elongated slots 20 permit circumferential expansion and contraction of the casing 11.

The transverse portion of the casing 11 is cut away at 21, to receive the pinion 6, and the same is transversely divided at 22, to permit the improved casing to be assembled around the pinion 6, and the adjacent portions of the joint flanges 12 are overlapped and detachably connected by means of nut equipped bolts 23. A removable hood 24 is provided for covering the exposed portions of the pinion 6 and for closing the openlng 21, thus affording a dustproof covering for said pinion. The hood 24 is provided with laterally projecting flanges 25 detachably between the overlapped ends 15 of the casing 11 and betweenthe hood 24 and the adjacent portions of the casing 11.

Oil Z, in which the lower portion of the gear 5 runs, is introduced into the casing 11 through an opening 28 formed in the transverse portion of the casing 11, adjacent to one of its overlapped ends 15. This 0 enin 28 is normall closed b a swin in 23 b b cover 29, pivotally secured, at one end, to the casing 11 by a pivot pin 30 and having, at its free end, a detent 31 adapted for in terlocking engagement with an aperture 32 formed in the casing 11. Grease cups 33 are secured to the joint flanges 12, for introducing oil between the wearing strips 13 and the joint flanges 9. A discharge nipple 3 1 is provided at the bottom of the casing 11, for drawing off the old oil within said casing. This nipple 3 1 is normally closed by a screw cap 35.

From the above description, it is evident that the improved casing will exclude all dirt and dust from the gear 5 and cooperating pinion 6. By means of the rods 16, the joint flanges 12 may be circumferentially adjusted, so as to closely flt the joint flanges 9 to form dust proof joints therebetween. The oil from the grease cups 32 will keep the joint flanges 9 and wearing strips 13 sufliciently well oiled to cause the joint flanges 9 to freely rotate with the wearing strips 13. Obviously, new wearing strips 13 may be provided from time to time to replace the old ones, and the screw rods 16 may be adjusted to take up the wear between the joint flange 9 and the wearing strip 13 and thereby maintain the proper joint between the parts. Suflicient oil may be placed in the casing 11, through the opening 28, to cause the lower part of the gear 5 to run therein. The teeth of the gear 5 will carry suflicient oil to keep the pinion 6 well lubricated. The hood 2 1 may be moved from time to time, to permit inspection of the pinion 6 and adjacent portion of the gear 5.

What we claim is:

1. The combination with a gear having reversely extended joint flanges, of an annular casing having joint flanges seated on the joint flanges of said gear, and means for expanding and contracting the joint flanges of one of said members, substantially as described. V

2. The combination with a gear having reversely extended annular joint flanges, of an annular casing having joint flanges seated on the joint flanges of said gear, said casing being transversely divided and the ends thereof overlapped, and an adjusting device connecting the ends of said casing for expanding and contracting its joint flanges on the joint flanges of said gear, substantially as described.

3. The combination with a gear having reversely extended annular joint flanges, of an annular casing having joint flanges seated on the joint flanges of said gear, means securing said casing against rotation, means for expanding and contracting the joint flanges of said casing on the joint flanges of said gear, substantially as described.

4. The combination with a gear having reversely extended annular joint flanges, of an annular casing having joint flanges seated 011 the joint flanges of said gear, said casing being transversely divided and the ends thereof overlapped, adjusting devices connecting the ends of said casing for expanding and contracting its joint flanges on the joint flanges of said gear, substantially as described.

5. The combination with a gear and a pinion meshing therewith, of reversely extended annular joint flanges on its rim, of an annular casing having joint flanges seated on the joint flanges of said gear, said casing being transversely divided and the ends thereof overlapped, screw threaded adjusting rods for expanding and contracting the joint flanges of said casing on the joint flanges of said gear, means securing said casing against rotation, said casing having an opening through which said pinion may be inspected, and a removable cover for the opening in said casing, substantially as described.

6. The combination with a gear and a pinion meshing therewith, of reversely extended joint flanges secured to the rim of said gear, an annular casing having joint flanges seated on the joint flanges of said gear, said casing being transversely divided and the ends thereof overlapped, reversely screw threaded rods for expanding and contracting the oint flanges of said gear, means securing said casing against rotation, said casing having anopening through which said pinion projects, a removable hood secured to said casing and covering said pinion, ancl a nut equipped clamping bolt mounted in elongated coincident slots formed in the overlapping ends of said oasing, substantially as described.

7. The combination with a gear and a pinion meshing therewith, of reversely extended joint flanges secured to the rim of said gear, an annular casing having jointflanges seated on the joint flanges of said gear, said casing being transversely divided and the ends, thereof overlapped, reversely screw threaded rods for expanding and contracting the joint flanges of said gear, means the bottom of said casing, substantially as securing said casing against rotation, said described. casing having an opening through which In testimony whereof We affix our signasaid pinion projects, a removable hood setures in presence of two Witnesses.

5 cured to said casing and covering said pin- FRED 0. EAST ion, a nut equipped clamplng bolt mounted EMIL J B} ST in elongated coincident slots formed in the overlapping ends of said casing, a normally Witnesses: closed oil opening at the top of said casing, N. B. BAGNE,

10 and a normally closed discharge nipple at GEO. A. LINDOW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

